Commuters queue for buses during a tube strike at Victoria Station in London, UK, Aug 6, 2015. Underground workers have called a 36-hour strike for the second time within a month. Millions of Londoners will have to seek alternative transport to work. [Photo/IC]

LONDON - Millions of Londoners struggled to work on Thursday as a strike brought the Underground rail network to a standstill for the second time in a month over plans for a new all-night service.

Commuters turned to cars, boats, bicycles and heaving buses to cope with the 24-hour walkout by rail unions. No trains were running on the network, which usually handles some four million journeys a day.

"When you get into the central stations, it's carnage," said James Isaacs, who works for a private bank and was struggling with two large bags in the City of London financial district. "It's hot, it's sweaty and someone's going to lose their temper soon."